Fire blight resistance in hawthorns

Field observation of outbreaks of fire blight on hawthorn shrubs and trees in 1994-1996 showed a wide individual variability in reaction. Susceptible and very susceptible plants were prevalent among wild hawthorns. The majority of 63 seedlings tested were susceptible. No distinct difference in susce...

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Bibliographic Details
Published inPlant Protection Science - UZPI (Czech Republic) Vol. 34; no. 2
Main Authors Korba, J, Patakova, S, Kudela, V. (Vyzkumny Ustav Rostlinne Vyroby, Prague-Ruzyne (Czech Republic))
Format Journal Article
LanguageCzech
Published 01.07.1998
Subjects
BACTERIOSE
BACTERIOSES
BACTERIOSIS
CRATAEGUS
DISEASE RESISTANCE
ERWINIA AMYLOVORA
INOCULACION
INOCULATION
PLANTAS SILVESTRES
PLANTE SAUVAGE
RESISTANCE AUX MALADIES
RESISTENCIA A LA ENFERMEDAD
SELECCION
SELECTION
SINTOMAS
SYMPTOME
SYMPTOMS
WILD PLANTS
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Summary:Field observation of outbreaks of fire blight on hawthorn shrubs and trees in 1994-1996 showed a wide individual variability in reaction. Susceptible and very susceptible plants were prevalent among wild hawthorns. The majority of 63 seedlings tested were susceptible. No distinct difference in susceptibility was found between plants grown from seeds from naturally infected and from non-infected shrubs. Only one seedling was highly resistant. Its high level of resistance was confirmed by repeated inoculations (4 times) during three growing seasons in 1995-1997. The resistant seedling was identified as C. monogyna having some characteristics of C. laevigata.
Bibliography:H20
1998000917
ISSN:0862-8645